The revolution is pof's 308 that handles like a 5.56 - because it is the same size and weight as one by using a 5.56 bolt carrier and other 5.56 parts allowing for a shorter overall receiver size and reduced weight.The revolution features many 5.56 parts; such as charging handle, bolt carrier, cam pin, buffer, heat sink barrel nut, handguard.The barrel extension, bolt assembly, upper, and lower receiver are the exact same size as those on an ar15.This model is built on the gen 4 lower receiver with ambidextrous controls, and has a 14.5" mlok mrr free-float handguard, pof's standard 4.5 lb.Drop-in trigger.Action: Semi-AutoCaliber: 308 WinBarrel Length: 18.50"Capacity: 20+1Trigger: Single-StageSafety: AmbidextrousOal: 34"Weight: 7.35 lbsStock Description: AdjustableMuzzle: ThreadedReceiver Material: AluminumSights: None, Optic ReadyBarrel Description: Match GradeTwist: 1:10"Barrel Length Range: 18" to 18.99"Weight Range: 7 lbs to 7.99 lbsHand: AmbidextrousStock Finish Group: BlackMetal Finish Group: Blued/Black